diff options
Diffstat (limited to 'drivers/usb/host/ehci-hub.c')
| -rw-r--r-- | drivers/usb/host/ehci-hub.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 382587c4457c..d613dc9e9c05 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -875,3 +875,13 @@ static void ehci_relinquish_port(struct usb_hcd *hcd, int portnum) set_owner(ehci, --portnum, PORT_OWNER); } +static int ehci_port_handed_over(struct usb_hcd *hcd, int portnum) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + u32 __iomem *reg; + + if (ehci_is_TDI(ehci)) + return 0; + reg = &ehci->regs->port_status[portnum - 1]; + return ehci_readl(ehci, reg) & PORT_OWNER; +} |